--- type: entity entity_type: company name: Third Horizon domain: health status: active tags: [mental-health-parity, data-infrastructure, policy-analytics] --- # Third Horizon Third Horizon is a data infrastructure and policy analytics company that developed the Mental Health Parity Index in collaboration with The Kennedy Forum. The company specializes in building measurement tools for healthcare policy enforcement. ## Timeline - **2024-2026** — Developed Mental Health Parity Index with Kennedy Forum, piloted in Illinois - **2026-04-14** — National launch of Mental Health Parity Index